Melanotan II

Tan with far less sunThe flagship. It tells your skin to make melanin directly (via the MC1R receptor), so you build deep, lasting color without frying yourself in UV. Especially useful if you burn easily or tan poorly.

Appetite suppressionThe "skinny", it activates MC4 in the brain, and users naturally eat less.

LibidoThe "horny", the same MC4 signal drives arousal, in men and women. It's real enough that a sister molecule (bremelanotide) is FDA-approved for female libido.

The metabolic angleBecause it's non-selective, it also touches the melanocortin system's role in energy balance, research shows α-MSH can raise energy expenditure and switch on brown fat (your calorie-burning fat). This is why it's a melanocortin hack, not just a tanning shot.